The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2025
Filed:
Sep. 24, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
Provided is a refrigerator that includes a storage chamber capable of storing a preserved product, power supply unit (), oscillation circuit (), oscillation electrode () and counter electrode (), matching unit () that matches impedance, controller (), and a shield. Power supply unit () includes a first power supply part that rectifies an alternating current from a commercial alternating-current power supply and converts the alternating current into a direct current, a first ground part that serves as a reference potential of the first power supply part, a second power supply part and a third power supply part that each step down an output voltage of the first power supply part and output the stepped-down output voltage, a second ground part that serves as a reference potential of the second power supply part, and a third ground part that serves as a reference potential of the third power supply part. Oscillation circuit () is supplied with power from the second power supply part, and controller () is supplied with power from the third power supply part.